package ch02;

public class E4 {
	public static void main (String args[]) {
		long[] a = {1,2,3,4};
		long[] b = {100,200,300,400,500};
		b = a;
		System.out.println("数组b的长度："+b.length);  //「代码一」
		System.out.println("b[0]="+b[0]);              //「代码二」
	}
}
